Home / 87,437.88-120,649.23-49,192.11

Finding the Fourth Proportional to 87,437.88, 120,649.23 and 49,192.11

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Solution

The fourth proportional to 87,437.88, 120,649.23 and 49,192.11 is: 67,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,437.88 : 120,649.23 = 49,192.11 : x
  2. Step 2: Convert to fraction form
    87,437.88/120,649.23 = 49,192.11/x
  3. Step 3: Cross multiply
    87,437.88x = 120,649.23 × 49,192.11
  4. Step 4: Simplify right side
    87,437.88x = 5,934,990,193.58
  5. Step 5: Solve for x
    x = 5,934,990,193.58/87,437.88
  6. Step 6: Final answer
    x = 67,876.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.